Question

find the sum of first n natural numbers​

Answer 1

Answer:

2

Step-by-step explanation:

1+1=2 this the steps hope it will help u

Answer 2

S

n

=1+2+3+....+n

S

n

=

2

n

[2a+(n−1)d] where a=1,d=2−1=1

⇒S

n

=

2

n

[2×1+(n−1)1]

⇒S

n

=

2

n

(n+1)

∴ Sum of first n natural numbers=

2

n(n+1)